(19)

(11)

EP 0 923 593 A1

(12)

(43) Date of publication: 23.06.1999 Bulletin 1999/25 (21) Application number: 97934266.0 (22) Date of filing: 23.07.1997

(51) International Patent Classification (IPC):  C07H 13/ 06( . ) (86) International application number: PCT/US1997/012907 (87) International publication number: WO 1998/006731 (19.02.1998 Gazette 1998/07)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE (30) Priority: 08.08.1996 US 19960694137 (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati, Ohio 45202 (US)	(72) Inventors: CORRIGAN, Patrick, Joseph Cincinnati, OH 45241 (US) BERGER, Roger, Stephen Fairfield, OH 45014 (US) (74) Representative: Brooks, Maxim Courtney, et al  Procter & Gamble Technical Centres Limited, Whitley Road, Longbenton Newcastle upon Tyne NE12 9TS Newcastle upon Tyne NE12 9TS (GB)